GeForce GT 430 vs GeForce GTX 660

Intro

Compare that to the GeForce GTX 660, which features a clock frequency of 980 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 192-bit memory bus, and makes use of a 28 nm design. It is made up of 960 SPUs, 80 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTX 660		140 Watts
	Difference: 80 Watts (133%)

Memory Bandwidth

The GeForce GTX 660 should in theory perform a lot faster than the GeForce GT 430 overall. (explain)

GeForce GTX 660		144192 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 115392 (401%)

Texel Rate

The GeForce GTX 660 is quite a bit (more or less 600%) faster with regards to texture filtering than the GeForce GT 430. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 67200 (600%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 660 is superior to the GeForce GT 430, by far. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 20720 (740%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.